Filter cartridge for an upright vacuum cleaner



FIG. 1 is a perspective view of a filter cartridge for an upright vacuum cleaner showing our new design, the cartridge is shown positioned on the body of an upright vaccum cleaner;

FIG. 2 is a perspective view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof, the left side being a mirror image;

FIG. 5 is a top plan view thereof;

FIG. 6 is a front elevational view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in FIG. 1 are shown for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a filter cartridge for an upright vacuum cleaner, as shown and described. 